Positioning device of sinking pump

ABSTRACT

A positioning device of a sinking pump has a body. The body is formed with a receiving portion. A pad made of elastic material can be received in the receiving portion. The pad is inflatable as being filled with fluid and then expands to resist against the peripheral wall of the channel for installing a sinking pump so as to isolate the channel and position the sinking pump. Water from the sinking pump may be drained out from a hole penetrating through the body.

FIELD OF THE INVENTION

[0001] The present invention relates to a positioning device of a sinking pump, and particularly to a positioning device connected with a pad which is made of elastic material and can be received in a receiving portion. The pad is inflatable as being filled with fluid and then expands to resist against the peripheral wall of a channel for installing the sinking pump so as to isolate the channel and position the sinking pump.

BACKGROUND OF THE INVENTION

[0002]FIG. 4 shows a well for pumping ground water. In drilling a well, a plurality of continuously connected metal tubes 71 are buried in the well as supporting frame. The tubes form a channel 72 for installing a sinking pump 8. The sinking pump 8 is connected to a plurality of metal water tubes 81 extending to ground surface and combining with the sealing cover 73 of the channel 72. Thereby, the sinking pump 8 may support by the channel 72. Each water tube 81 extends out of the sealing cover 73 and has a water outlet section.

[0003] Each water tube 81 must be formed with inner and outer threads for fixing. In general, the depth of the well is ranged from several tens to several hundreds meters. For example, in Middle East, a well has generally a depth of 350 m. The depth of a water tube 81 is about 6 meters. In other word, sixty water tubes 81 are necessary. Each water tube 81 must be formed with threads. After it is used for a time period, when the sinking pump 8 has faults or the water tube 81 breaks. A long time period, for example two days, is necessary for repairing it. However, in many places, this time period is sufficient to cause the fading of crops. Therefore, it is necessary to improve this condition.

SUMMARY OF THE INVENTION

[0004] Accordingly, the primary object of the present invention is to provide a positioning device of a sinking pump, wherein a pad made of elastic material can be received in the receiving portion. The pad is inflatable as being filled with fluid and then expands to resist against the peripheral wall of the channel for installing the sinking pump so as to isolate the channel and position the sinking pump.

[0005] Another object of the present invention is to provide a positioning device of a sinking pump, wherein the cover plate as well as the wall serve to clamp the pad in the receiving portion so that the positioning device of the sinking pump can be installed conveniently.

[0006] A further object of the present invention is to provide a positioning device of a sinking pump, wherein as the pad inflate to resist against the peripheral wall of the channel, and thus, the channel may transfer water so as to achieve the object of saving cost.

[0007] The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008]FIG. 1 is a structural schematic view of the present invention.

[0009]FIG. 2 is a schematic view showing that the present invention is used to a well.

[0010]FIG. 3 is a structural schematic view of the second embodiment of the present invention.

[0011]FIG. 4 is a structural schematic view of the third embodiment of the present invention.

[0012]FIG. 5 is a structural schematic view of the fourth embodiment of the present invention.

[0013]FIG. 6 is a schematic view showing a prior art sinking pump being installed in a well.

DETAILED DESCRIPTION OF THE INVENTION

[0014] In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.

[0015] Referring to FIGS. 1 and 2, the sinking pump positioning device of the present invention is illustrated. The device includes a body 1. The body 1 has a hole 11 axially penetrating the body 1. The lower end of the body 1 is connected to the sinking pump 3 so that the pumping water from the sinking pump 3 flows through the hole 11 upwards. A top 112 of the hole 11 has a plug 113. Generally, the plug 113 may cover the hole 11 by the weight thereof. The body 1 has a receiving portion 12. The receiving portion 12 serves to install a pad 2 which is made of an elastic material. The pad 2 is a hollow ring. In this embodiment, the pad 2 is made of rubber material. The bottom of the receiving portion 12 is extended with a wall 13. The side of the body 1 corresponding to the wall 13 is locked with a cover plate 14 using a screw 141. The cover plate 14 as well as the wall 13 serves to clamp the pad 2 in the receiving portion 12. The pad 2 has a valve mouth 21 protruding out of the cover plate 14. The mouth 21 may be filled with fluid into the hollow pad 2 so that the pad 2 may expand outwards. In this embodiment, the pad 2 is filled with air. As the pad 2 is inflated and then expands, then it will resist against the peripheral wall of the channel 42 for installing the sinking pump 3 so as to isolate the channel 42 and position the sinking pump 3. Besides, the body 1 is fixed to the suspending frame 15 by the screw 141 fixing the cover plate 14. Therefore, a steel rope 16 may pass through the suspending frame 15 for suspending the body 1.

[0016] With reference to FIG. 2, since as drilling a well, in general metal tube 41 will be buried to form a channel 42 located near the sinking pump 3. Therefore, the body 1 is made to have a size smaller than that of the channel 42. The sinking pump 3 is combined to the bottom of the body 1. In installing, the steel rope 16 passes through the suspending frame 15 for suspending the body 1. The body 1 and the sinking pump 3 descend to the ground water layer. The mouth 21 of the pad 2 is connected to an air compressing tube 22. The tube 22 and the steel rope 16 extend to the ground surface. By the air compressing tube 22, air is filled to the pad 2 through the mouth 21. Therefore, the pad expands and then resists against the peripheral wall of the channel 42 to isolate the channel 42 and position the sinking pump 3. As a result, when the sinking pump 3 starts for pumping water, water flows through the hole 11 of the body 1 to eject the plug 113 to rotate pivotally. Then water flows to the channel 42 so that the channel 42 is used for transferring water without needing to connect an extra tube. Both the air compressing tube 22 and the steel rope 16 pass through the sealing cover 43 of the channel 42. Therefore, the steel rope 16 is beneficial to suspend the body 1. The air compressing tube 22 supplies air to the pad 2 periodically for sustaining the pad 2 to resist against the peripheral wall of the channel 42.

[0017] When it is used for a period of time, if the sinking pump 3 has faults, it is only necessary to vent air in the pad 2 so that the pad 2 will not resist against the peripheral wall of the channel 42. Then the body 1 and the sinking pump 3 can be pull up by the steel rope 16. After updating, the body 1 and sinking pump 3 descends to the ground water layer. Then the air compressing tube 22 inflate air to the pad 2 so that the pad 2 may resist against the peripheral wall of the channel 42. Therefore, the operation of updating may be performed rapidly without several tens of water tubes as in the prior art. Therefore, the operation is more conveniently. The cost is decreased.

[0018] In summary, in the present invention, since the pad 2 in the receiving portion 12 of the body 1 is made of rubber and is a hollow ring, it may inflate after filling with air so as to resist against the channel 42 of the channel 42. Therefore, the channel 42 can be sealed and the sinking pump 3 can be fixed. After the pad 2 inflates, the channel 42 is sealed and is then used as a channel for transferring liquid.

[0019] Many modifications about above embodiments may be performed by those skilled in the art without deviating from the present invention. For example, referring to FIG. 3, the second embodiment of the present invention is illustrated. The body 5 is extended with lateral walls 53 from the two sides of the receiving portion 52. At the side of the lateral wall 53 near the receiving portion 52 has a circular groove 531. The pad 6 has an annular shape and a C shape cross section. The pad 6 has flanges 61 configured with respect to the grooves 531 at the two lateral walls 53 of the pad 6 for positioning the grooves 531. Thereby, an annular closing space 62 is formed by the receiving portion 52, the two lateral walls 53 and the pad 6. The closing space 62 further has a mouth 63 which passes through the lateral walls 3 to extend to the body 6. Thereby, fluid may be filled through the mouth 63 to the space 62 and thus the pad 6 can inflate so as to have the same effect as that in the first embodiment.

[0020] Referring to FIG. 4, the third embodiment of the present invention is illustrated. The interior of the body 5A has a receiving space 55, thereby, a pump 3A can be installed therein. Two sides of the receiving portion 56 are extended with lateral walls 57, respectively. The pad 6A has an annular shape and has a C shape cross section. The pad 6 has stoppers 65 corresponding to the two lateral walls 57 for resisting against the inner edges of the two lateral walls 57. Thereby, the receiving portion 56, two lateral walls 57, and pad 6A define an annular closing space 66. The closing space 66 has a mouth 67 extending from the body 5A. Therefore, liquid is filled into the closing space 66 from the mouth 67 so that the pad 6A may expand outwards. As a result, it has the same effect as that in the first embodiment.

[0021] With reference to FIG. 5, the fourth embodiment of the present invention is illustrated. The body 5B are extended with a lateral wall 53B, respectively, from two sides of the receiving portion 52B. The outer sides of two lateral walls 53B have a respective annular first buckling groove 53C. The outer sides of the two lateral walls 53B are locked with a cover plate 54B, respectively. The pad 6B has an annular shape and has a C shape cross section. The pad 6B has flanges 61B each corresponding to and compensated to the buckling groove 53C. Thereby, the flanges 61B of the pad 6B are stopped by the cover plate 54B and is buckled in and fixed in the two buckling groove 53C so that the receiving portion 52B, two lateral walls 53B and pad 6B define an annular closing space 62B. The closing space 62B has a mouth 63B passing through the lateral wall 53B to protrude out from the mouth 63B of the body 5B. Therefore, liquid is filled into the closing space 62B from the mouth 63B so that the pad 6B may expand outwards. Moreover, the pad 6B has a plurality of annular protrusions 64B, so that as the pad 6B expands outwards, each protrusion 64B resists against the peripheral walls of the tubes (not shown) installed in the sinking pump 3B. As a result, it has the same effect as that in the first embodiment.

[0022] The present invention are thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims. 

What is claimed is:
 1. A positioning device of a sinking pump having a body, the body having a hole axially penetrating the body; the body being connected to a sinking pump, thereby, pumping water from the sinking pump and the pumping water flowing through the hole upwards; the body having a receiving portion; the receiving portion being installed with a pad made of an elastic material; wherein the pad is inflatable as being filled with fluid and then expands to resist against the peripheral wall of the channel for installing the sinking pump so as to isolate the channel and position the sinking pump.
 2. The positioning device of a sinking pump as claimed in claim 1, wherein two lateral walls extend from the receiving portion; the pad has an annular shape and has a C shape cross section; the receiving portion, the two lateral walls and the pad define an annular closing space; the closing space has a mouth passing through the lateral wall to protrude out from the mouth of the body; therefore, liquid is filled into the closing space from the mouth so that the pad expands outwards.
 3. The positioning device of a sinking pump as claimed in claim 1, wherein the receiving portion is extended with a wall; the pad is a hollow ring, a side of the body corresponding to the wall is locked with a cover plate; a cover plate as well as the wall serves to clamp the pad into the receiving portion; the pad has a valve mouth; wherein the mouth is filled with fluid and the fluid flows to the hollow pad, thereby, the pad expanding outwards.
 4. The positioning device of a sinking pump as claimed in claim 1, wherein an end of the pump corresponding to the sinking pump has a plug, the plug covers the hole by the weight thereof as the sinking pump is not actuated.
 5. The positioning device of a sinking pump as claimed in claim 1, wherein the body has a suspending frame for suspending the body.
 6. The positioning device of a sinking pump as claimed in claim 2, wherein the pad has stoppers corresponding to the two lateral walls for resisting against inner edges of the two lateral walls.
 7. The positioning device of a sinking pump as claimed in claim 2, wherein each of the two lateral walls has a respective annular buckling groove; the pad has flanges corresponding to the buckling groove of the two lateral wall, thereby, each flange is engaged with a respective buckling groove.
 8. The positioning device of a sinking pump as claimed in claim 2, wherein each of outer sides of two lateral walls have a respective annular buckling groove; outer sides of the two lateral walls are locked with cover plates, respectively; the pad has an annular shape and has a C shape cross section; the pad has flanges corresponding to and compensated to the buckling grooves, thereby, each flange of the pad is stopped by the cover plate and is buckled in and fixed in the two buckling grooves. 